Disappearing machine rest



Aug. 25, 1931. D. H. cHAsoN DISAPPEARING IVICIIINE REST 2 Sheets-Sheet l Filed oo t. 5. 1929 Aug. 25, 1931. D. H. cHAsoN 1,820,527

DISAPPE'ARING'MACHINE REST 4 Filed oct. 5. 1929 2 sheets-sheer y i. J vanielbf zqslz duce/M1,

*45 4swung@ 061106211601' (Position.

e Patented Aug. 25, 193il This" invention j relates to sewing' `machine tables, more particularly of the droph'ead type `having a plural-sectioned i flush, cover for 'closing` the''op'eningr4 in' the 'table-top y through which'v Vhe v, sewing" machine is` dropped whennotlin use.-v In the manufacture ofztable's of 'this type it is custo-inary'to lmalle4 the tabletop andy cotf'erse'oti'ons from` the' same piece kof'wood tov maintain ,uniforme vity of color'ta'nd" continuity of the graining';l the piece which is sawed from'fthe table-top inlcutting the` aperture therein being usedfor the;cover'"whiclfif,y in turn, is sawed into a pluf rality of sections subsequently hinged to gether, sothat the section or' seetioiis'of 'the cover not usedv .when the sewing `machine' 'is raised to' operative position may be swung to a concealed position-below the k'table-top. v It is customary to use one of the cover- `sections tof support one edgel ofV the sewing machine bed' 'when the sewing machine is raised to' operative 'position and, for this` pur-y pose,the practice was',toraloloet` o r'undercut the edge of the machine-bed'supportin'gsecl tion and glue' a strip of woodinthecut-oi'it portion; the.y 'glii 'd-nf strip projecting b'eyfoiid the.edgelofthecoverisection `to Jform a p machinebed' "supportingfledge `The 'adj acent cover-section was'r'abbeted to receive such ledgeV when ,the4 sectionsA of the cover .were swung tolie in a vcomrnor'i .planefsThese woodworking operations [werel troublesome and'fcostl '.1 y 4, Y j' i' In m'yatent No; 1,745,781g` issuedy Feb'. 4;,

35 1:9305ther'eis discloseda'drop-head sewing Y machine table lia-Ying aoldahle cover; the machine-tbed-slipporting section of whichis provided with one'or moredisappearing ma- 'chine' rests .inthe v, form Vof metal slides re'- ceived in x*suitable guideway's screwed ito i the cover-section". "The rests'ztare fbacked by 'springs `which project'them bey-ond the edge o f the -cover-section to machine-'supporting position when th'eadjacent coVer-section-is`- AYIt hs been foiiifidy inisomecasesithatloe'f cause' of the vibration of the sewingI machine head there'is a tendency for the rests to 'creep back; into their recesses in the supporting lrportingvthe' machine.v y,

tion.V `lligffi: is anedgeviewof .the cover-v z l porting rests.`

NEW JERSEY, A ooiironii'rioiv :tor-'NEW .ieeefseriai Ne, 357,519.`

to drop into'ftlie kcavity 'of the table; c

n It is an ohject'of the presentinfvention to y proyidelocling means which'will eiectively preventv displacement ofthe 'rest from" ina- #e chine-supportingposition while 'they are sup- Another object' f y t ,y ltheiiiveinbii'ii0"so devise' the lockingfineaii's'that no v,special attentionfneed begivei'ithereto by' the operator .50 I

in" raising the sewing machine tofoperative position or lowering itto yinoperative position. t c f 1 t According to the presentimprovemenuin its preferred embodiment, v of Yertical play is provided `forl.loetweenthe rests and their guidewafys.v The 'proximate 'surfacesofthe yrests and guideways which sup 'Jort the weight of the'sewing machine arep'rovided with finteren'gaging pro]ections .im

fal'ld depressions which locktherests against 'eridwi'se movement whiley they` arefsubj'ectged' tothe weightfof'thesewing machine. thefsewing' machine is purposely' lowered into the ,cavity of" the ttfalole' and the .concealed 15' i ,inthe aonipnyihgafeeings, 'Figfiis af top'` `plan vView of La'sewing machine c table embodying the invention. Fig2 is fa trans- 1,* yerse, vertical section throughthetalole with the sewingfmachine Ahead/in concealed posi? tion'. Fig' is a simi-larv fview withthe sewingV machine ,head raised toV operative posi- 'section' which y carries the machine-hed sup- ',Figfis a 'detail sectional View through two adjoining :cover-sections showing the machine-,bed supportedhy oneoi Y the machine-bed rests.v

Fig.; 6V is asimilar "view showing the oldable cover-section in the Yact vofV lifting'fthejrest preparatory; to I' pushing it toff concealedposition. {Fig.17 `is va `disassembled perspective View of the DANIEL irromisoir, Yor nizAinm'iiiNfw; JiiiifSEY-,nnssieivon Tof-THE siNeERrMAirU-l a slight amount machinefbed rest shown inFigs. 5 and 'vrrandfg f When the sewing machine 6 isin lowered position, the aperture 2 is closed by aflush cover comprising three sections 7, 7 b and 7 c; the sections 7a and 7b being connectedtogether by the hinges 8 and the sections 7b and 7.c being connected by the hinges 9. The cover, as a whole, is connected by hinges 10 to the ed e of the aperture 3 lopposite the edge to w ich the sewing machine hinges 4 are secured. The cover-sections 7, 7b, `7c are sawed from the same piece of wood which is cut out of the table-top 1 `in sawing the aperture 3, thus maintaining uniformity of color and continuity of the graining of the exposed wood surface.

Letinto recesses 11 in the edge of the coversection 7 adjoining the section 7b are a pair of disappearing machine-bed rests 12 in the form of Z-shaped elements, ther lower horizontal bars 13 of whichv are slidably `mounted in ways formed by the superposed flat and troughed plates, 14 and 15, respectively.` A stop-pin 16 carried by the bar 13 of each rest 12 enters a slot 17 `in its supporting troughed plate 15 and limits the sliding movement of the rest. An expansion spring 18 in each recess 11 bears against the upper end of the inclined bar 19, Fig. 5, ofV each rest and yieldingly urges the rest to move outwardlyfrom its recess 11 across the edge 0f its supporting cover-section 7 a to machinebed supporting position, Fi 3,'in which position the cover-sections b andv 7C` aro swung under the section 7a to a concealed position below the top 1. I The bottomface of the slide-bar 13 of each restj12 is formed with a transverse depression'or groove`20' which, when the rest is projected to machine-supporting position, Fig. 5, is engaged by the transverse projection 21 struck up from theforward edge of 'the plate 15, thus locking the rest in its machine-supporting position. It will be observed that it is the proximate `surfaces 22, 23 ofthe rest 13 and guideway-plate 15 Vwhich are pressed together by the weight of the sewing machine` and which are provided with y.the depression 2O and projection v21. Thus the rest is held locked to theplate 15 by the weight of the sewing machine. When the sewing machine is lowered through the aperture 2 its weight is necessarily removed. from the Vrests `12. During the swinging movement of the cover-section 7 b from concealed position, Fig. 5 to a position in a plane with the cover-section 7, the wear-plates 24 on the edge of the coversection 7b moving in circular arcs about the hinge-pins 8, engage the rests 12 with an upward followed by an inward lmotion and lift the rest-s clear of the projections 21, subsequently pushing the rests into the recessesll. f

An additional groove 20 may be provided alongside the groove 20 to be engaged by the projection 21 if, for any reason, such projection fails to engage the groove 20.

l/Vhile I vhave shown and described one embodiment of the invention, it is to be understood that the invention is vsusceptible of embodiment in various other forms, as will readily occur to those skilled in the art.

Having thus set forth the natureof the invention, what I claim herein is 1. A sewing machine table having atop formed with an aperture and means for supporting a sewing machine in operative positionin said aperture, said means including la vrest having a movement in a direction substantially parallel to the plane ofthe tabletop from non-supporting to machine-supporting position, and rest-locking means in engagement with which said rest is maintained bythe weight of the supported sewing machine, said restand rest-locking means having an interlocking projection. and depression. A 2. A sewing machine table having a top formed with an aperture and means for supporting a sewing machine in operative position in said aperture, said means including a rest having a movement'in a direction substantially parallel to the plane of the tabletop from non-supporting to machine-supporting position, and stationary rest-locking means into engagement with which said rest is moved transversely of the plane of the table-top. 3. In asewing machinel table, the combination with a `plurality of cover-sections having their abutting edges hinged together, of' a spring-pressed sewing machine bed-support let into one of said edges and engaging the other edge under spring-pressure and automatically projectable from said one ofsaid edges when the cover-sections are relatively swung about their hinge-connection, and automat-ically operative means for locking said bed-support in its projected posit-ion.

A sewing machine table having. a top formed with an aperture and a cavity below said Vtop into which the sewing machine is dropped through said aperture when not in use, a flush cover adapted to close said aperture and comprising a plurality of sections hinged together'and to said top, a guideway carried by one of said cover-sections adjacent the adjoining cover-section, a machinebed support movable longitudinally andlat'- erally'of said guideway, said restand guideway having in their proximate surfaces ywhichl are held pressed together bythe weight of the supported sewing machine interlocking 1 projection and depression means, and a spring for proj swung out of a comon plane about their hinge-connection.

5. A sewing machine table having a top formed with a sewing machine bed-receiving aperture and with a cavity below said aper' ture into Which the sewing machine may be dropped through said aperture when not in use, a cover hinged to said top and'adapted f to close said aperture, a movably mounted machine-bed rest engaging said cover when the latter is in closed position, a'sprin'g acting tov move saidrest from inoperativeto machine-suporting positionv when said cover is t ksaid aperture, and autol.

opened to expose inatically interlocking projection and depression means or locking said rest in machine-supporting position.

6. In a sewing machine table, apair ofV relatively movable sections hinged together and having meeting edges, a guideway on.. machine-'bed rest dis,

one of said sections, a posed in said guideway7 said rest and guide- Yway having interlocking projection and desaid rest being movable lonpression means, gitudinally of said guideway across the edge of its supporting sect-ion between its. inoperat tive and operative positions and laterally of said guideway jforengagement and disen-V gagement of said* interlocking means, a

spring for moved about their hinge connection, the initial engagement of said rest and one of said sections, when said sections arek relatively moved to restore their edges in rmeeting lrelation, effecting a lateral movement of said rest in said guideway tounlock said rest, followed by a longitudinal movement of said rest in said guideway to inoperative position.

name to this specification.

DANIEL H. oHAsoN;

j ecting said rest into machine-sup- Y porting position when said cover-sections are projecting said rest to operative' position whenv said sections are relatively` In testimonywhereof, I have signed my, 

